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What is segmentation fault in C?

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A segmentation fault is a common problem that causes programs to crash. A core file (core dumped file) also associated with a segmentation fault that is used by the developer to finding the root cause of the crashing (segmentation fault).

Generally, the segmentation fault occurs when a program tried to access a memory location that is not allowed to access or tried to access a memory location in a way that is not allowed (tried to access read-only memory).

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